Condenser/Evap replacement


  #1  
Old 11-05-15, 04:48 AM
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Condenser/Evap replacement

Hi All, looking for thoughts on system replacement,my plan is at some point having my condenser and "A" coil replaced,everything else will stay as is as I see no need to replace the whole AH as the electric heat has never been and probably never will be used,blower motor is easy to replace should it need be.
Geo
 
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Old 11-05-15, 05:06 AM
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I'm not an ac guy, but my guess would be you will spend nearly as much for replacing the two coils as the whole system and you would still have an older, possibly much less energy-efficient, compressor.

AC pro's?

Geo, might want to add make/model/age of unit for the discussion.
 
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Old 11-05-15, 05:21 AM
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Will when I say condenser that would be compressor also,it's a 2003 Armstrong 2 1/2 ton currently operating with no problems in SW FL.
Geo
 
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Old 11-05-15, 10:47 AM
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Okay, got it. I was thinking just the condenser coil not the whole unit.

SW FL = my neighborhood.

You a snowbird?

 
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Old 11-05-15, 11:26 AM
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Yes sir, and I can't stand this record breaking heat!
Geo
 
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Old 11-05-15, 02:25 PM
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Yeah, pretty unseasonable. Heard them say on the radio this morning record on this date is 91 in 1959. Think we hit 87 today. Must be all the hot air drifting down from D.C. Prediction tomorrow is 90 followed by some rain on the weekend and then cooler next week.
 
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Old 11-06-15, 06:55 AM
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Unless you have a cased coil then you will be better to change the AHU as well.
 
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Old 11-06-15, 07:24 AM
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Don't know what type of system you have. but it is very common to replace A coil and/or condenser without replacing air handler. you don't need to replace both items at the same time unless they failed at the same time. Usually, one will last many years longer then the other.
 
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Old 11-06-15, 07:30 AM
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I checked with one HVAC co. Yesterday and he said no repreable co would install the Evap and condenser,there would be no warranty,and the blower motor might fail at some point,also there are all kinds of government rules against it.
Geo
 
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Old 11-06-15, 10:13 AM
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no government rules are against it
 
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Old 11-06-15, 10:16 AM
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If this is a cased coil on a gas or oil furnace you are fine. If its a coil in a AHU for AC or heat pump you will have to replace the AHU. Main reason because you most likely will not find another coil to fit in it. Plus the new AHU will likely cost less than just the coil.
 
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Old 11-06-15, 10:22 AM
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Go find another HVAC firm. Let us know what type of AC system you have so we can help you more.
 
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Old 11-06-15, 02:20 PM
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Armstrong condenser Mdl SCU12E30A4. S/N 1603J17531
Armstrong AH Mdl EBCZ42AN00A-1. S/N 5830F29326
Geo
 
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Old 11-06-15, 04:44 PM
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There are no regulations which force you to replace an entire system. If they can match up a new condenser with your existing coil then that is what usually happens. If they can't THEN it will all need replacing.

As for the air handler, its output must match the tonnage rating for the ac, but assuming you're replacing what you already have then it's already matched up, so no harm in using the old one.

What they can't guaranty if you do not replace the AH is the seer rating. It may be less than what is posted if a factory matched AH is not used.

Look for another contractor because you are not getting all the information with the one you are now talking to.
 
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Old 11-06-15, 05:27 PM
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It is not hard to find a matching condenser, call a couple of other places, you should be able to find one.
(just my curiosity, what is the size of your evap coil ?) .
 
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Old 11-06-15, 06:26 PM
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2 1/2 ton and it would be replacing the condenser and matching Evap,the only thing I was trying to keep was the AH shell which would contain the electric heat (which has never been used)and the blower assembly,blower motor would be no big deal to replace if need be,I would think that a warranty on the job would be on the condenser and Evap.
Geo
 
  #17  
Old 11-07-15, 04:58 AM
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I wonder if there could be an issue with the SEER rating if the whole system isn't replaced?SW FL. seems a bit different with their requirements,I think I will try and check with inspectional services and see what I can find out there,
Geo
 
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Old 11-07-15, 08:28 PM
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You will be OK if you match them correctly. You have a 2.5 ton condenser now, but your AH (may be) has a 3.5 ton coil. So check to make sure they were matched correctly to begin with.
 
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Old 11-08-15, 06:30 AM
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Well regardless of the present Evap coil I would want it matched up to the new condenser.any idea who would sell matched sets?
Geo
 
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Old 11-08-15, 07:51 PM
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It is not hard to match one to the other, or a matching pair. Call a couple of local AC firms to start.
 
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Old 11-09-15, 05:24 AM
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OK , so I just contacted the inspectional services and they say that it is not illegal to replace as a matched set,however the contractor must prove it is 13 SEER rated.
Geo
 
  #22  
Old 11-09-15, 07:59 AM
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All you have to do is call the contractor and get a condenser or evap coil installed. you don't have to worry about any EPA/any other rules. That is the contractor's job. In fact, these days most if not all new units are above 13 SEER.
 
 

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